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Comparative Study
. 2014 Mar;69(3):270-3.
doi: 10.1093/gerona/glt082. Epub 2013 Jun 14.

Association analyses of insulin signaling pathway gene polymorphisms with healthy aging and longevity in Americans of Japanese ancestry

Brian J Morris  1 , Timothy A Donlon, Qimei He, John S Grove, Kamal H Masaki, Ayako Elliott, D Craig Willcox, Bradley J Willcox
Affiliations
Comparative Study

Association analyses of insulin signaling pathway gene polymorphisms with healthy aging and longevity in Americans of Japanese ancestry

Brian J Morris et al. J Gerontol A Biol Sci Med Sci. 2014 Mar.

Abstract

Evidence from model organisms suggests that the insulin/IGF-1 signaling pathway has an important, evolutionarily conserved influence over rate of aging and thus longevity. In humans, the FOXO3 gene is the only widely replicated insulin/IGF-1 signaling pathway gene associated with longevity across multiple populations. Therefore, we conducted a nested case-control study of other insulin/IGF-1 signaling genes and longevity, utilizing a large, homogeneous, long-lived population of American men of Japanese ancestry, well characterized for aging phenotypes. Genotyping was performed of single nucleotide polymorphisms, tagging most of the genetic variation across several genes in the insulin/IGF-1 signaling pathway or related gene networks that may be influenced by FOXO3, namely, ATF4, CBL, CDKN2, EXO1, and JUN. Two initial, marginal associations with longevity did not remain significant after correction for multiple comparisons, nor were they correlated with aging-related phenotypes.

Keywords: Human.; Insulin signaling genes; Longevity; Molecular genetics.

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